McSweeney Steel Company

Founded in 1913, Alaskan Copper Works offers forming and brazing pipings, kettles and coils made from copper, brass and bronze. It serves the pulp and paper, marine, chemical, petrochemical, beverage and wastewater treatment industries. The company is a manufacturer and fabricator of corrosion-resistant alloy products. Alaskan Copper Works has coil processing, shearing, sawing, splice welding, plasma cutting and custom fabrication capabilities. It has an engineering and drafting department that provides computerized design of heat transfer equipment, pressure vessels and tanks. Alaskan Copper Works maintains a division, Alaskan Copper Works, which offers aluminum products for customers in the boat building, food processing, mining and power industries. Alaskan Copper & Brass Company provides pipes, rods, bars, sheets, plates, tubings, fittings and flanges. The division operates a more than 300,000 square feet of warehouse facility that specializes in material handling and processing equipment.

Founded in 1983, Seaport Steel is one of Seattle's largest independently owned structural steel and plate distributors. Its roots are established from Isaacson Steel in 1907. Isaacson was primarily a structural steel distributor. It conducted business in Seattle until it closed operations in 1983. At that time, Seaport Steel was formed by purchasing the inventory and equipment of Isaacson's Steel Service Division. In 1984, Seaport Steel bought the Steel Service Center. This plant specialized in steel plate and plate processing. By combining the two, Seaport is able to offer not only structural steel items but also cut and processed steel plate. Seaport Steel is a major supplier to construction, manufacturing and shipbuilding companies in the Northwest.